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Open Source Computer Vision Library
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Yuantao Feng accf200408
Merge pull request #25238 from fengyuentau:optimized_const 
dnn: avoid const layer forwarding in layer norm layer and attention layer #25238

While profiling ViTs with dnn, I found `ConstLayer` can take a proportion of the inference time, which is weird. This comes from the data copy during the inference of `ConstLayer`. There is a chance that we can improve the efficiency of data copying but the easiest and most convenient way is to avoid `ConstLayer`. This PR change the way how we handle constants in layer normalization layer and attention layer, which is storing in the layer blobs instead of making constant layers for them.

Checklists:

- [x] Backend compatibility in layer normalization layer.

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake
2024-03-26 15:09:51 +03:00
.github Added job to test with real hardware. 2024-01-31 15:05:19 +03:00
3rdparty Merge pull request #25257 from Kumataro:fix25256 2024-03-25 08:58:30 +03:00
apps Partially back-port #25075 to 4.x 2024-03-05 12:15:39 +03:00
cmake Merge pull request #25257 from Kumataro:fix25256 2024-03-25 08:58:30 +03:00
data Merge pull request #22727 from su77ungr:patch-1 2022-11-17 06:54:25 +00:00
doc Merge pull request #25213 from mshabunin:fix-doc-buttons 2024-03-25 09:44:54 +03:00
include exclude opencv_contrib modules 2020-02-26 15:12:45 +03:00
modules Merge pull request #25238 from fengyuentau:optimized_const 2024-03-26 15:09:51 +03:00
platforms Merge pull request #25084 from EDVTAZ:emscripten-3.1.54-compat 2024-02-26 10:30:56 +03:00
samples Merge pull request #25176 from cabelo:4.x 2024-03-25 10:02:17 +03:00
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.gitignore Merge pull request #17165 from komakai:objc-binding 2020-06-08 18:32:53 +00:00
CMakeLists.txt doc: fix formulas in JavaDoc broken after Doxygen upgrade 2024-03-11 23:47:23 +03:00
CONTRIBUTING.md migration: github.com/opencv/opencv 2016-07-12 12:51:12 +03:00
COPYRIGHT copyright: 2023 (update) 2023-01-09 09:49:22 +00:00
LICENSE Merge pull request #18073 from vpisarev:apache2_license 2020-08-17 11:49:11 +00:00
README.md Space mistake in README.md 2024-03-03 23:37:07 +05:30
SECURITY.md Updated PGP key for security reports 2023-04-19 19:16:55 +03:00

README.md

OpenCV: Open Source Computer Vision Library

Resources

Contributing

Please read the contribution guidelines before starting work on a pull request.

Summary of the guidelines:

  • One pull request per issue;
  • Choose the right base branch;
  • Include tests and documentation;
  • Clean up "oops" commits before submitting;
  • Follow the coding style guide.

Additional Resources